公开(公告)号：US20210032987A1

公开(公告)日：2021-02-04

申请号：US16944654

申请日：2020-07-31

Applicant: Chevron U.S.A. Inc.

Inventor： Scott Jeffrey Seltzer ,  Marcus Oliver Wigand ,  Zheng Yang ,  Michael T. Rauschhuber ,  Edward Russell Peacher ,  James Daniel Montoya

IPC: E21B49/08 ,  G01N33/24 ,  G01R33/12

Abstract: One embodiment of a method of performing a test on a core sample comprises transferring at least a portion of a core sample from a first core containment vessel to a second core containment vessel. The core sample is maintained at a substantially equivalent pressure or placed under a higher pressure during the transfer of the core sample from the first vessel to the second vessel. The method further comprises performing a test on the core sample in a measurement region of the second vessel.

公开(公告)号：US20230340850A1

公开(公告)日：2023-10-26

申请号：US18345784

申请日：2023-06-30

Applicant: Chevron U.S.A. Inc.

Inventor： James Daniel Montoya ,  Jonathon Crain Boudreaux ,  Patrick Rodriguez ,  Cole Thomas Brinkley ,  Scott Jeffrey Seltzer ,  Marcus Oliver Wigand ,  Zheng Yang ,  Michael T. Rauschhuber ,  Edward Russell Peacher

IPC: E21B25/08 ,  E21B25/00 ,  G01N33/24

CPC classification number: E21B25/08 ,  E21B25/005 ,  G01N33/24

Abstract: A method of transferring at least one subterranean core sample from a retrieval vessel to a testing vessel can include removing at least one pressure barrier on the retrieval vessel using a linear actuator while maintaining a sampling pressure on the at least one subterranean core sample at which the at least one subterranean core sample is taken from a subterranean formation. The method can also include pressurizing the testing vessel to the sampling pressure using the linear actuator, and transferring the at least one subterranean core sample from the retrieval vessel to the testing vessel. The method can further include sealing the testing vessel with the at least one subterranean core sample at the sampling pressure, where the testing vessel allows the at least one subterranean core sample to be tested while the at least one subterranean core sample is maintained at the sampling pressure.

公开(公告)号：US11549902B2

公开(公告)日：2023-01-10

申请号：US16999242

申请日：2020-08-21

Applicant: CHEVRON U.S.A. INC.

Inventor： Martha Rebecca Stokes ,  Zheng Yang ,  Prince E. Ezebuiro ,  Timothy B. Fischer

IPC: G01N27/22 ,  G01N33/24 ,  E21B49/00 ,  E21B49/02

Abstract: Provided herein are various embodiments of determining a cation exchange capacity of a rock sample. One embodiment of a method of determining a cation exchange capacity of a rock sample comprises equilibrating the rock sample to a relative humidity, performing a dielectric permittivity measurement on the rock sample at the relative humidity, and determining a cation exchange capacity of the rock sample based on the dielectric permittivity measurement. One embodiment of a method of determining a cation exchange capacity of a rock sample comprises receiving a dielectric permittivity measurement on the rock sample, and determining a cation exchange capacity for the rock sample based on the dielectric permittivity measurement of the rock sample and a relationship between cation exchange capacity and dielectric permittivity measurements for mineral mixtures corresponding to a range of cation exchange capacity values.